【摘要】：隨著我國經(jīng)濟(jì)的快速發(fā)展以及工業(yè)化進(jìn)程的加快,我國電力需求量持續(xù)高速增長。然而,電力工業(yè)如此迅猛的增長速度一方面促進(jìn)了我國經(jīng)濟(jì)高速發(fā)展,另一方面也導(dǎo)致我國面臨著嚴(yán)峻的環(huán)境保護(hù)危機(jī)�；痣姀S生產(chǎn)過程中排放的二氧化硫、氮氧化物等大氣污染物及溫室氣體對大氣環(huán)境和氣候變化造成了難以預(yù)計(jì)的影響。因此,本文針對天津某典型火電廠SO2、NOx脫除過程中協(xié)同產(chǎn)生的C02量進(jìn)行了核算,結(jié)合電廠實(shí)際情況設(shè)置了4種不同的SO2、NOX、CO2減排情景,并基于協(xié)同效應(yīng)的量化分析,估算了不同減排情景下的CO2排放量,對不同脫碳率下的SO2、NOx去除工藝的協(xié)同減排效益進(jìn)行了深入研究。結(jié)果表明：該電廠脫硫工藝(石灰石-石膏濕法)每減少1噸S02排放,同時增加2.28噸C02排放量,電廠脫硝工藝(低氮燃燒和SCR聯(lián)合工藝)每減少1噸NOx排放,同時增加了0.77噸C02,均對二氧化碳減排產(chǎn)生了負(fù)效益,當(dāng)脫碳比分別為1：2：3：4時,電廠實(shí)際每日排放的CO2量為5925.59、5369.59、4813.51、4257.47噸。 基于魯棒優(yōu)化方法,結(jié)合協(xié)同減排核算得到的協(xié)同效應(yīng)系數(shù)以及核算方法,本研究構(gòu)建了大協(xié)同控制模式下的火電廠機(jī)組負(fù)荷優(yōu)化模型。通過結(jié)果可以看出,該模型能有效反應(yīng)火電廠污染物減排與溫室氣體控制的耦合關(guān)系,實(shí)現(xiàn)大協(xié)同控制模式下的火電廠機(jī)組負(fù)荷優(yōu)化運(yùn)行,進(jìn)而為火電廠管理者制定合理的機(jī)組負(fù)荷分配計(jì)劃提供科學(xué)有效的決策依據(jù)。
[Abstract]:With the rapid development of China's economy and the acceleration of industrialization, the demand for electricity in China has been increasing at a high speed. However, the rapid growth rate of the power industry has promoted the rapid development of our economy on the one hand, and on the other hand, it has also led to the severe environmental protection crisis in China. The emissions of sulfur dioxide, nitrogen oxides and greenhouse gases from thermal power plants have an unpredictable impact on the atmospheric environment and climate change. Therefore, in this paper, the co production of CO2 in the SO2,NOx removal process of a typical thermal power plant in Tianjin has been calculated, and four different scenarios of SO2,NOX,CO2 emission reduction have been set up according to the actual situation of the power plant, and based on the quantitative analysis of synergy effect, The CO2 emissions under different emission reduction scenarios were estimated and the synergistic emission reduction benefits of SO2,NOx removal processes under different decarburization rates were studied. The results show that the desulfurization process (limestone gypsum wet process) reduces 1 ton of S02 emissions, increases 2.28 tons of CO2 emissions at the same time, and reduces 1 ton of NOx emissions from the power plant denitrification process (low nitrogen combustion and SCR combined process). At the same time, the increase of 0.77 tons C02 has negative benefit on carbon dioxide emission reduction. When the decarburization ratio is 1: 2: 3, respectively, the actual daily CO2 emission of the power plant is 5925.59% 5369.59% 4813.51% 4257.47 tons. Based on the robust optimization method, combined with the synergistic effect coefficient and the accounting method, the load optimization model of thermal power plant under the mode of large cooperative control is constructed. The results show that the model can effectively reflect the coupling relationship between pollutant emission reduction and greenhouse gas control in thermal power plants, and realize the optimal load operation of thermal power plants under the mode of large cooperative control. Then it provides a scientific and effective decision basis for the managers of thermal power plants to make reasonable load distribution plans for units.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：X773;X51

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